n: 40 m: 571 packed: 13 density: 0 nodes: 0 solveTime: 43720 buildTime: 200 solved: true
{0,23,34}
{1,2,18}
{3,4,11}
{5,35,39}
{6,9,13}
{7,8,22}
{10,20,38}
{12,15,17}
{14,16,24}
{19,31,36}
{21,25,29}
{26,28,33}
{27,30,37}